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B. A, MASON. MACHINE FOR FORGING HORSESHOE NAILS, ALSO WROUGHT NAILS,SPIKES, &c.

No. 22,663. Patented Jan. 18, 1859.

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HORSESHOE-NAIL MACHINE.

Specification of Letters Patent No. 22,663, dated January 18, 1859.

To all whom it may concern:

Be it. known that I. ltnNJAuiN A. lvhson, of Newport, in the State oflthode Island. have invented a new and useful lktachinc for l orgingIlorseshoe and other Nails, Spikes, and other Articles: and I do herebydeclare that the following is a full. clear. and exact descriptionthereof. reference being bad to the acctnnpanying drawings. making partof this specification, in which-- Figure l, a front ele mtion of the machine; Fig. 2, an end elevation; Figs. 3 and 4, vertical sections takenat the lines A, a and I5, I), of Fig. 2; Fig. .3. is a plan of the bedof the machine; Figs. (3 and 7, face and edge view of one of thehammers; and Fig. 8. a separate view of one of the links with the indiarubber bush.

The same letters indicate like parts in all the figures.

In the said machine the hammering of nails or other articles to bewrought is effected by four hannners arranged in two pairs, each pairmoving in opposite directtions to strike on opposite sides of the rod tobe forged. and the other pair working in like manner, but the two pairsat right angles with each other and alternately, the faces of the fourhamn'iers being adapted to the form of the article to be forged. Andanother feature of the. said invention relates to a. method of relievingthe hammers and their connections from the rep sated shocks consequentupon the forging, and consists in the employment of vulcanized india.rubber so interposed to receive the shocks at the moment of striking.

In the accompanying drawings there are three vertical and parallelplates (A, A, 1),) which are suitably connected to form the frame of themachine. In each of the two plates (A, A) are formed two grooves ((1,1a,) crossing each other at right angles to form the ways or guides forfour sliding hammers (B, B, B, B.) which all more toward and from acommon center where the grooves cross. The faces of these hammers are tobe suitably formed, swage like, to the form of nail, or other article tobe forged by them, and they are operated by four cranks (e, c, e, c) onefor each. The crank pins project from the face of four pinion wheels (H,H, H, IL) arranged at equal dis tances apart and around a master cogwheel H,) from which they all derive motion, the said master wheel beingmounted on the main shaft (lb) which has its hearings in suitable boxesin the two plates (A, A) its axes being in line with the central pointof the crossing of the grooves ((1, (1, in the two plates. 7

Each hammer is connected with its appropriate crank pin by a joint link(7') the pin which connects the hammer with its link if) passing througha bushing of vulcanized india rubber, the elasticity of which will yieldslightly to the shock when the hammer strikes the article that is beingforged, thereby saving much of the wea and 1 an which would beconsequent upon the hanuncring operation. The four cranks are so placedas to move the two hammers (It. HQ) which are in line, toward each otherto strike the rod which is being forged on two opposite sides. while.the other two hammers (1%, 13.! are moving from each other. and afterstriking they (the hammers I). It.) are moved from each other to returnwhile the other two (B.' B) are moved toward each other to strike theother two faces of the rod.

The hammers are formed with a lillet (KQ) on each of the two oppositeedges fitted to the guide or way grooves in the plates as beforedescribed, but they may be guided in any other equivalent manner.

In front of the plate A") there is a bracket piece (2) with a guide holethrough which the operative introduces that end of the rod which is tobe forged, and this re tains it centrally between the four hammers whichact. upon its four faces to reduce it to the form required. If thearticles to be forged are nails, as soon as the end of the rod isreduced and forged to the required form of the under part of the head.the shank and point, the rod is drawn out and inserted to the distancerequired through a hole ((7) in the front plate (A'). 'lhelower part ofthis hole is formed to be a stationary shear cutter, and against theinner face of the plate (A) is mounted a rotating shear (c) mounted on ashaft ((1') which l'ct' tlYts motion from the master wheel by a pinion(s) and by the rotation of the shear (c) the nail is cut off and dropsthrough a hole(F) in the platform (E), and the rod is returned to thehammers to forge another nail. Instead of the rotary shear any othersuitable shear may be substituted.

From the foregoing it will be seen that by iving the required form tothe face of the hammers various articles may be forged,

although in Stlht invvntion is vhiutiy intt'llttttt loi lorg'ing horsoahou unit (Jttlt'l' units, unit For tho t'ol'ging of nails .1 pi'o'tivito l'oiin tilt l'm'v, of omh hnnnnor with :L cnv it having :1SilUllittLl' vzu'h side an; mprosuntml in Fig. T, tho :u't'iclo to hoforged hoing t'ornmt hotwvon tho Sttitt shoulders, thus giving thelttlllil'tti form to the units :It tilt. angles.

What I (-lzinn as my invontion tllltt ttOHtLU to 500N110 by LettersPatent isl. The combination of the font hitllllllOl'S arranged in pairs,the two constituting ouch

